Y517-A/B Oil in Water (PAH) Sensor
Yosemitech Y517-A/B oil-in-water (PAH) sensor adopts the fluorescence properties of PAH for detection. This fluorescence-based method provides superior efficiency, speed, and repeatability compared to several traditional techniques, enabling real-time online monitoring. Equipped with a self-cleaning brush, the sensor effectively eliminates bubbles and oil residues, minimizing contamination interference and extending the maintenance interval. This ensures outstanding stability during prolonged online use, allowing the sensor to monitor and alert users to oil pollution in water.
- Digital sensor with RS-485 output and standard MODBUS protocol.
- Online measurement of polycyclic aromatic hydrocarbons (oils) content in water using ultraviolet fluorescence technology, offering high sensitivity.
- Features an imported high-precision UV LED light source with high stability, minimal drift, and long service life.
- Includes a self-cleaning brush to prevent microbial attachment, ensuring a longer maintenance cycle.
- All calibration data is stored directly in the sensor, enabling seamless on-site installation and immediate use.
| Name | PAH Sensor (low range) | PAH Sensor (high range) |
| Model | Y517-A | Y517-B |
| Measuring principle | Ultraviolet fluorescence method | Ultraviolet fluorescence method |
| Range | 0-1100ppb(BTEX)、0-1000ppb(PAH) | 0-60ppm(BTEX)、0-100%RFU |
| Linearity | R²＞0.999 | R²＞0.999 |
| Resolution | 0.01ppm | 0.01ppm |
| Temperature range | 0-50℃ | 0-50℃ |
| Maximum water depth | 30m | 30m |
| IP range | IP68 | IP68 |
| Interface | RS-485 , MODBUS protocol | RS-485 , MODBUS protocol |
| Power supply | 0.2W（non-wiping）0.6W（wiping）；DC 12-24V DC | 0.2W（non-wiping）0.6W（wiping）；DC 12-24V DC |
| Size | Φ50mm*176.3mm | Φ50mm*181.3mm |
| Cable length | 10 m (default) , customizable | 10 m (default) , customizable |
| Calibration | 0-point or 1-point or 2-point calibration | 0-point or 1-point or 2-point calibration |
| Sensor housing material | 316L(Ti) | 316L(Ti) |
- Oil in Water Sensor
- 10m Cable（default), Customizable
- User Manual
- Delivery Inspection Report
Environmental Monitoring:
Ideal for monitoring oil pollution in natural water bodies, helping to protect ecosystems and comply with environmental regulations
Analytical Chemistry:
Used in chemical analysis laboratories to detect and quantify oil concentrations in water samples
Limnological Studies:
Supports limnological research by providing accurate data on oil contamination in freshwater ecosystems
Oceanographic Biology:
Assists in studying marine environments by monitoring oil levels, which is crucial for understanding the impact of pollution on marine life
The Oil in Water Analyzer Principle typically involves the detection and measurement of oil concentration within a water sample. This is often achieved through various technologies and methods, such as fluorescence, infrared spectroscopy, or laser-induced breakdown spectroscopy. Each of these methods has its own principle of operation:
Fluorescence-based analyzers:
When oil is excited by light of a specific wavelength, it emits light at a different wavelength (fluorescence). The intensity of this emitted light is proportional to the concentration of oil in the water. The analyzer measures this fluorescence to determine the oil content.
Infrared (IR) spectroscopy analyzers:
Oil molecules absorb infrared light at specific wavelengths. By measuring the absorption patterns, the analyzer can identify and quantify the oil present in the water.
Laser-induced breakdown spectroscopy (LIBS) analyzers:
A laser pulse is used to create a plasma from the water sample, which then emits light. The emitted light spectrum is analyzed to detect the presence of elements associated with oil, allowing for the determination of oil concentration.
These analyzers are designed to provide accurate and reliable measurements of oil in water, which is crucial for environmental monitoring, regulatory compliance, and the protection of aquatic ecosystems.
Environmental Protection:
Oil spills or leaks can cause significant harm to aquatic ecosystems. By monitoring oil levels in water, we can detect pollution incidents early and take action to mitigate environmental damage.
Regulatory Compliance:
Many industries are subject to regulations that limit the amount of oil they can discharge into water bodies. Regular measurements help ensure that these legal requirements are met.
Equipment Maintenance:
In industrial settings, monitoring oil in water can indicate the condition of machinery and the effectiveness of containment measures, prompting timely maintenance and repairs.
Public Health:
Oil contamination can affect the safety of drinking water and seafood for human consumption. Regular testing helps protect public health by ensuring that water sources remain free from harmful pollutants.
Research and Development:
Understanding the behavior of oil in water is crucial for developing new technologies and methods for oil spill response, cleanup, and prevention.
Overall, measuring oil in water is a critical component of environmental management and helps to safeguard both natural resources and human populations that rely on clean water for survival and economic activities.
Yosemite offers three types of Oil in Water Sensors and Analyzers for Water Quality Monitoring. Our online Oil in Water Analyzer features a self-cleaning brush that prevents microbial attachment, leading to longer maintenance cycles. The sensors provide better repeatability and stability, and are suitable for various water quality measurement scenarios, including oilfield monitoring, pipeline transportation, petrochemical industry, and oil pollution.
From April 21th to 23rd, 2025, IE Expo China 2025 concluded successfully at the Shanghai New International Expo Centre. As a highly anticipated communication platform in the industry, the exhibition attracted exhibitors, experts, scholars, and industry elites from around the world to gather in Shanghai. Through various forms such as cutting - edge technology displays and high - end forum sharing, it created a professional and forward - looking audio - visual feast for the industry.
Suzhou Yosemite Technology Co., Ltd. ("YOSEMITECH"), which has been deeply involved in the water quality monitoring field for over 11 years, always adheres to the mission of "Water Monitoring Made Simple". YOSEMITECH showcased its self - developed water quality monitoring sensors and instruments at the exhibition. As a manufacturer of water quality monitoring sensors, we had in - depth exchanges with domestic and foreign partners and industry peers during the exhibition. It fully demonstrated its profound expertise in areas such as water quality sensor research and development and intelligent monitoring system integration, and continuously empowered global water quality monitoring scenarios with innovative technologies to promote the efficient and intelligent development of the industry.
